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All results from a given calculation for CH3CH2CHO (Propanal)

using model chemistry: MP2/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/LANL2DZ
 hartrees
Energy at 0K-192.272460
Energy at 298.15K-192.278750
HF Energy-191.885886
Nuclear repulsion energy115.619655
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/LANL2DZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3139 3023 32.11      
2 A' 3038 2925 17.92      
3 A' 3020 2909 61.79      
4 A' 2980 2870 103.47      
5 A' 1595 1536 54.16      
6 A' 1541 1484 6.18      
7 A' 1505 1449 22.68      
8 A' 1464 1410 10.40      
9 A' 1420 1368 4.87      
10 A' 1384 1333 7.78      
11 A' 1121 1080 14.67      
12 A' 1031 993 1.33      
13 A' 850 818 16.23      
14 A' 658 634 5.93      
15 A' 253 244 8.75      
16 A" 3146 3030 37.57      
17 A" 3067 2954 16.98      
18 A" 1535 1479 8.07      
19 A" 1296 1248 0.74      
20 A" 1168 1125 1.87      
21 A" 908 875 1.14      
22 A" 703 677 6.78      
23 A" 218 210 0.48      
24 A" 128 123 4.08      

Unscaled Zero Point Vibrational Energy (zpe) 18583.4 cm-1
Scaled (by 0.9631) Zero Point Vibrational Energy (zpe) 17897.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/LANL2DZ
ABC
0.52754 0.18805 0.14630

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.481 0.461 0.000
C2 0.000 0.942 0.000
C3 -1.024 -0.202 0.000
O4 -0.721 -1.435 0.000
H5 2.161 1.331 0.000
H6 1.692 -0.154 0.891
H7 1.692 -0.154 -0.891
H8 -0.211 1.574 0.887
H9 -0.211 1.574 -0.887
H10 -2.093 0.107 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 O4 H5 H6 H7 H8 H9 H10
C11.55692.59132.90631.10411.10311.10312.21092.21093.5915
C21.55691.53582.48462.19562.20402.20401.10941.10942.2536
C32.59131.53581.26963.53492.85862.85862.14572.14571.1131
O42.90632.48461.26963.99512.87362.87363.17893.17892.0644
H51.10412.19563.53493.99511.79451.79452.54402.54404.4266
H61.10312.20402.85862.87361.79451.78152.57093.12563.8972
H71.10312.20402.85862.87361.79451.78153.12562.57093.8972
H82.21091.10942.14573.17892.54402.57093.12561.77372.5458
H92.21091.10942.14573.17892.54403.12562.57091.77372.5458
H103.59152.25361.11312.06444.42663.89723.89722.54582.5458

picture of Propanal state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 113.828 C1 C2 H8 110.920
C1 C2 H9 110.920 C2 C1 H5 110.024
C2 C1 H6 110.747 C2 C1 H7 110.747
C2 C3 O4 124.386 C2 C3 H10 115.672
C3 C2 H8 107.323 C3 C2 H9 107.323
O4 C3 H10 119.942 H5 C1 H6 108.776
H5 C1 H7 108.776 H6 C1 H7 107.701
H8 C2 H9 106.146
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability